New energy automobile heat management system capable of utilizing waste heat fully

A new energy vehicle and management system technology, applied in the field of new energy vehicle thermal management system, can solve the problems of ineffective work, high cost, waste of energy, etc., so as to improve cruising range, reduce power demand, and reduce energy consumption Effect

Pending Publication Date: 2019-04-19
SHANGHAI COTECH AUTOMOTIVE ENG CORP LTD
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0005] However, the thermal management system disclosed in the above-mentioned patents does not fully utilize waste heat, such as waste heat from batteries, waste heat from motors, and heat generated by compressor power consumption, which are directly discharged into the environment, resulting in waste of energy.
The current heat pump technology cannot work effectively in an environment below -20°C due to technical limitations, and the system is too complicated and the cost is high

Method used

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  • New energy automobile heat management system capable of utilizing waste heat fully

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Embodiment

[0037] A new energy vehicle thermal management system that makes full use of waste heat, such as figure 1 , including water pump 1, water heating PTC 3, warm air core 5, regenerator 7, cooler 8, power battery 9, CDU12, motor cooler 13, water cooling condenser 14, radiator, which are connected in series and form a circulation loop in sequence 18 and expansion water tank 19, the two ends of plumbing PTC 3 and radiator 18 are connected with bypass water pipes 16, 20, and a refrigeration heat exchange unit is arranged between cooler 8 and water-cooled condenser 14, and the refrigeration heat exchange unit is connected with cooler 8 The air conditioner evaporators 22 are arranged in parallel. The refrigeration heat exchange unit includes a compressor 21 and an electronic expansion valve 11 . The pipeline of the air conditioner evaporator 22 is provided with an expansion valve and a stop valve 23 . Water temperature sensors 1 and 4 are provided on the outlet pipeline of the water ...

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Abstract

The invention relates to a new energy automobile heat management system capable of utilizing waste heat fully. The system comprises a water pump, a water heating PTC, a warm air core, a heat regenerator, a cooler, a power battery, a CDU, a motor cooler, a water-cooling condenser, a heat radiator and an expansion water tank, two ends of the water heating PTC and the heat radiator are connected witha bypass water pipe, a refrigerating heat exchange unit is arranged between the cooler and the water-cooling condenser, and an air conditioning evaporator is arranged in the refrigerating heat exchange unit and parallelly connected with the coolers. Compared with the prior art, the system has the advantages that battery waste heat, motor waste heat and waste heat generated by work consumption ofa compressor can be utilized effectively for passenger cabin air conditioner heating, defrosting, demisting and battery heating , and power demand of the water heating PTC is lowered effectively, so that energy consumption of a heat management system is reduced, and driving mileage of a new energy automobile is increased.

Description

technical field [0001] The invention belongs to the technical field of new energy vehicles, and in particular relates to a thermal management system for a new energy vehicle that fully utilizes waste heat. Background technique [0002] Under the macro background of building a low-carbon, energy-saving economy, the development of new energy vehicles is the general trend. However, with the continuous improvement of battery energy density and customers' demand for fast charging rate, safety problems caused by thermal problems of new energy vehicles occur frequently. The thermal management system of new energy vehicles is indispensable and requires continuous technical improvement; The energy saving of the management system also needs to be improved. [0003] Patent CN106585414A discloses an intelligent multi-circuit electric vehicle cooling system, and patent CN107097664A discloses an intelligent multi-circuit electric vehicle thermal management system. Form a thermal managem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60H1/00B60H1/14B60H1/22
CPCB60H1/00392B60H1/143B60H1/2221
Inventor 余守杰梁易超张强
Owner SHANGHAI COTECH AUTOMOTIVE ENG CORP LTD
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